All About Electrons - Electron Configuration

All About Electrons -Electron Configuration

by Genia Harris

​Organizing the electrons in the Atom

​Quantum Numbers

– an address for electrons; scientists can indicate a particular electron in an atom with a set of only four numbers. 

• Principal quantum number, n: indicates energy level

• Orbital angular momentum quantum number, l: indicates sublevel (s, p, d, f)

• Magnetic quantum number, ml: indicates which specific orbital

Electron spin quantum number, ms: indicates the spin of the electron

​Quantum Numbers

Multiple Choice

The principle quantum number, n, represents the:

• spin value

• suborbital value

• energy level

• magnetic value

Multiple Choice

It is the quantum number that describes the energy of an orbital and its atomic size.

• Azimuthal Quantum Number

• Principal Quantum Number

• Spin Quantum Number

• Magnetic Quantum Number

Multiple Choice

What is the maximum number of electrons that can be found in the n3 energy level

max number= 2n²

• 3

• 6

• 8

• 9

• 18

Multiple Choice

It is the quantum number that describes the "shape" of the orbital.

• Principal Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Choice

Which of the following sub levels does not exist

• 2p

• 3d

• 2d

• 5f

• 4f

Multiple Choice

Orbital sublevels, or L, represents:

• orbital color

• orbital shape

• electron spin

• energy level

Multiple Choice

A quantum number determining orbital orientation around the atom’s core is called... .

• n

• l

• m

• s

Multiple Choice

It is the quantum number that describes the orientation of the orbital in space and can have a value of -ℓ to +ℓ.

• Principal Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Select

What are the possible values of the spin number Ms?

pick all the options

• -1/2

• 0

• - 1

• 1

• 1/2

Multiple Choice

Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

Multiple Choice

Which orbital shows a violation of the Aufbau Principle?

• A
• B
• C
• D

Multiple Choice

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

Multiple Choice

What do you start electron configuration with?

• 1s²
• 1d¹⁰
• 1f¹⁴
• 1p⁶

Multiple Choice

This orbital diagram represents:  

• C
• B
• N
• O

Multiple Choice

 The diagram above represents two electrons with 

• a. opposite spins.
•  b. the same spin.
• c. different energies.
• d. different energy levels.

Multiple Choice

No two electrons in the same atom can have the same four quantum numbers.

• Aufbau principle
• Pauli exclusion principle
• Hund’s rule
• Noble gas notation

Multiple Choice

Which guideline, Hund’s rule or the Pauli exclusion principle, is violated in the following orbital diagrams?

• Hund's
• Aufbau's
• Pauli's Exclusive

Multiple Choice

All orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.

• Aufbau principle
• Pauli exclusion principle
• Hund’s rule
• Core Notation

Multiple Choice

Which guideline is violated in the following orbital diagrams?

• Aufbau's
• Hund's
• Pauli exclusive

​Watch the video to be successful for this assignment.

​LEWIS DOT DIAGRAMS

​A Lewis electron dot diagram (or electron dot diagram or a Lewis diagram or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom.

Multiple Choice

What is the goal of the Lewis Dot Structure?

• To determine the electron position.

• To show the element's valence electrons & bonding capabilities.

• To find the atomic mass of an element.

• To search for the number of electrons in an individual atom.

Multiple Choice

How many electrons should Boron have around its Lewis dot model?

• 1

• 2

• 3

• 4

Multiple Choice

This is a correct dot diagram for neon (Ne)

• true

• false